'''贺帅'''

class Animal:
    def __init__(self, species, sound):
        if species in ['猫', '狗', '羊', '猴子', '老虎', '大象']:
            self.species = species
            self.sound = sound
        else:
            self.species = None
            self.sound = None
    def speak(self):
        if self.species == None:
            print('动物园里没有该动物，游戏结束！')
            return False
        else:
            print(self.species, self.sound)
            return True
print('动物园里有什么?')
flag = True
while flag:
    s = input('请输入：')
    list1 = s.split(' ')
    animal = Animal(list1[0], list1[1])
    flag = animal.speak()